Official Statistics of Finland (OSF):
Building and dwelling production [e-publication].ISSN=1798-9590. August 2016,
Appendix table 1. Building production, three month total and year-on-year change
. Helsinki: Statistics Finland [referred: 21.3.2019].Access method: http://www.stat.fi/til/ras/2016/08/ras_2016_08_2016-10-21_tau_001_en.html